Do you have experience working with Docker and Kubernetes? At what level?

I have extensive experience working with Docker and Kubernetes at a senior level. In Docker, I created and optimized images for microservices in Go, and configured multi-container applications using Docker Compose. In Kubernetes, I handled deployment, scaling, and updating applications, wrote manifests for Pod, Deployment, Service, ConfigMap, and Secret. I also configured Helm charts to simplify releases and managed the cluster, including monitoring and logging.

Example Dockerfile for a Go application:

FROM golang:1.19-alpine AS builder
WORKDIR /app
COPY . .
RUN go build -o myapp

FROM alpine:latest
WORKDIR /app
COPY --from=builder /app/myapp .
CMD ["./myapp"]

Example Kubernetes Deployment manifest:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: myapp-deployment
spec:
  replicas: 3
  selector:
    matchLabels:
      app: myapp
  template:
    metadata:
      labels:
        app: myapp
    spec:
      containers:
      - name: myapp
        image: myapp:latest
        ports:
        - containerPort: 8080